This looks the same as the problem I have. I had another OS installed on the disk before I installed Ubuntu using the 12.10 live CD. There was a small primary partition, the rest of the disk was an extended partition. There were two partitions at the front of the extended space so I installed Ubuntu at the end of the extended space. It seemed that everything was normal (for a few months) until I tried to change the swap partition size. When I started gparted it listed all of the disk as free space. The last time any changes were made to the partition tables was the Ubuntu install.
As I see the problem the install changed the end of the extended partition to an incorrect value. During the install I used whatever partitioning program the install uses. The first partition defined was /home then swap then root, all at the end of the free space. The following is the output of fdisk. Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0xdf5ee111 Device Boot Start End Blocks Id System /dev/sda1 * 63 16064 8001 a OS/2 Boot Manager Partition 1 does not start on physical sector boundary. /dev/sda4 16065 703309823 351646879+ 5 Extended Partition 4 does not start on physical sector boundary. /dev/sda5 16128 10265534 5124703+ 7 HPFS/NTFS/exFAT /dev/sda6 10265598 30748409 10241406 b W95 FAT32 Partition 6 does not start on physical sector boundary. /dev/sda7 781461504 976771071 97654784 83 Linux /dev/sda8 703324160 781449215 39062528 82 Linux swap / Solaris /dev/sda9 625184768 703309823 39062528 83 Linux The Ubuntu partitions are listed backwards. Notice that the end of sda4 is the same as sda9, this is wrong. Why would any program change the end of the extended partition end unless you were purposely changing the size of the extended partition? I changed the end of sda4 to 976773166 which I think is correct (if not what should it be?) and now gparted can display all the partitions on the disk and I could change the size of the swap partition. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/812907 Title: Unallocated free space after creating parititons To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/812907/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs